Motor-vehicle



F. L DRUH.

MOTOR VEHICLE.

APPLICATION FILED FEB. 1o, 191s.

Patented July 12, 1921.

'muli Haw/1% Maar? f vid SFRAJIK J. DRUAR, OF DETRIT, MIC

HIGAN, SSGNOR TG PACKARD Moronfvnnronin.

mmm-t.

Application filed February To f/ZZ whom 'it 'may concern.'

lle it known that l, FRANK J. Driven, :1 citizen ot' the l'nited States, :and resident o't Detroit, ll'uyne county, State ot' Michigran., have invented certain'ncvv and useful improvements in lllotonVehicles, ot' which the 'l'ollovving' is a specification.

This 'invention relates to motor vehicles and particularly to steering knuckles thereof.

Une object of the invention is to provide an improved forni of oil retainer for the lower end of the pivot pin.

Another object ot the invention is to proa thrust plate adapted to have u bearing against said oil retainer and which is provided with a surface which will center the thrust plate as the same Wears away.

Another object of the invention is to provide etl'ective means 'for closing the knuckle against the entrance of dirt or dust.

lWith these objectsv and others in view, the invention is embodied in preferable form in the construction and arrangement herein.- efter described and illustrated in the accompanying' drawings, in Which-- Figure. l is e vertical section partly in side elevation of n knuckle showing my improvements applied thereto;

Fig. 2 is a top plan View partly broken away alongiV :i horizontal line; and e F 3 is e horizontal sect-ion on the line 3-3 or' Fig. l. i

Referrh'n;q to the drawings7 l0 is an axle, l1 a spindle, l2 a steering lever, and 13 an arm from the cross steering tube.

The axle is provided with an annular integral knuckle member section 14 andi' the spindle is provided with on integral knuckle portion ot which l5 indicates the upper halt' and 16 the lovver section.

The steering lever hns a knuckle member section l? provided with ears i8 adapted to be clamped lto ears 19 of the section by means of bolts 2U. whereby u twopnrt separable upper knuckle member is provided. llithin thi,l knuckle nienibcr thus formed is :.1 rvlindricnl sleeve 2l which is provided at itslower end with an outwardly extending horizontal flange adapted to extend un* der the sections l5 and 17 o'l3 the knuckle member. rl`his Flange, is provided with an annular flange 23 extending longitudinally Specification of Letters Patent.

improvements in the' ldt-entend July l2, 192th zo, wie. serial no. einen.

of the cylindrical portion ot the sleeve and which flange is adapted to enter n groove 24 formed in the axle und which is preferably provided with a packing 25. The intertting flange und groove providee labyrinth or interrupting surface which serves to eni elude dirt and dust and also to eectively retain the oil within the bearing.

Mounted within the sleeve 2l is a bushing 26 constituting a bearingr for the upper cylindrical portion of a hollow pivot pin27.

his pin is provided et its upper end with. a hollow nut 28 which is inclosed by o. cap 29 forming an oil receiving chninher.

The central portion of the pivot pin is tapered and tsjvithin a, correspondingly shaped seat in the axle. While the lower part of the pin is c vlindrical and extends within the lower ltnnclde member. This lower knuckle member is formed by the section 16 semi-cylindrical section 80 which is vand a Jformed integral with the connecting steering tube 13 and which is connected with the section 16 by means of bolts 31.

A cylindrical oil retaining member or cup 32 provided with e closed hezid or end 33 is adapted to be seated Within the knuckle formed by the two sections 16 and 30 und is provided at its upper end with a horizontal flange 34 adapted to rest upon the upper tace of the knuckle member and be support` ed thereby and having its head 33 closing the lower open end of the knuckle.

T he Hanne lar flange 35 extending longitudinally the longer axis oit/ the cylinder of the cup and which is adapted to enter groovf'e 36 preferably provided with suiable packing and formed in the axlel.

Between the lower end 'of the pivot pin and the head of the oil ed :i thrust plate 3'? which adapted to ren eeive the downward tl'irust of the pivot pin. This thrust plate has a channel 38 therethrough communicating); with the open central bore ofthe pivot pin to permit the passage of oil therethrough. This thrust plate is provided With n loiver spherical surface bearing against n complementary surface on rthe inner face of the head 33 of the. oil retainer whereby the thrust plate will center itself in its seat automatically and adjust itself to conditions produced by Wear.

34 is provided with an annuretainer is Inount- While I have described one specific embodiment of my invention it should be understood that the invention is capable of modification and' that modifications and changes lmay be made Without departing from the spirit or' scope of the invention as ex )ressed in the .following claim-s.

' la ving thus described my invention, what I claim and desire to secure by Letters Patent is Y 1. A steering knuckle having a splndle knuckle member, an axle, a pivot pin, an oil retaining cup mounted between the pin and knuckle member and having a supporting flange engaging the upper `suriace of said member, a flange extending longitudinally of the cup from said supporting lia-nge, said axle being grooved to receive said se@ ond liange. I

2. Avsteeringknuckle having a two-part separable knuckle member, an oil retaining cup having a iiange supported by said knuckle member, a pivot pin mounted in said cup, and a second knuckle member supported on said-pin, said cup and second knuckle member having interfitting portions for prei venting the escape of 011.

3. A steering knuckle including av spindle knuckle member,an oil retaining cup h./ing a slip fit in said member, and having'a portion supported on said member, a pivot pin mounted in said cup, and an axle knuckle member supported on said pin, said secondi knuckle member and said cup having interiitting portions to prevent the esm cape of oil. y

.4. A steering knuckle comprising a member having two-part separable upper and A lower knuckle members, an oil retaining cup carried by said lower" knuckle member and supported thereon, a pivot pin supported in said cup and a knuckle member supported on said pivot pin.

5. A steering knuckle comprising a member having upper and lower two-part steering knuckle members, an .oil retaining cup mounted inthe lower steering knuckle member and having a tianged supported thereon, a anged bushing mounted in the upper steering knuckle member, a pivot pin supported in the oil retaining cup, and a knuckle member mounted on said pivot pin intermediate the upper `and lower steering knuckle members, and having portions interiitt-ing with portions of the oil retaining cup and bushing for preventing the escape of oil.

6. A steering knuckle including a spin dle having upper and lower steering knuckle sections, a lever having a section completing the upper steering knuckle member, an arm having a section -completing the lower steering knuckle member, an oil retaining cup carried by the lower steering knuckle member, a pivot pin mounted in said cup and an aigle knuckle member mounted on said pivot In testimony whereoi14 l aiiix my signature.

' FRANK J. DRUAR; 

